/* 将每个结构的最外层容器的宽度设置为100% */
header,
nav,
main,
footer {
    width: 100%;
}

/* 版心1200px */
.w1200 {
    width: 1200px;
    margin: 0 auto;
}

header {
    background-color: #003f87;
}

nav {
    background-color: #ebebeb;
}


/* 头部logo和搜索框 */
.is_header {
    display: flex;
    justify-content: space-between;
    height: 143px;
    align-items: center;
}

/* 头部右侧搜索框 */
.search {
    display: flex;
    align-items: center;
    background-color: #ffffffcc;
    border-radius: 4px;
}

/* 头部右侧搜索框的输入框部分 */
.search input {
    width: 140px;
    padding: 6px 0px 6px 10px;
    font-size: 14px;
    color: #999;
    border: none;
    background-color: transparent;
}

/* 头部右侧搜索框的图片部分 */
.search img {
    width: 33px;
    height: 33px;
}

/* 一级导航栏水平排列 */
nav>ul {
    display: flex;
    justify-content: space-between;
}

nav ul li a {
    display: inline-block;
    width: 100px;
    height: 46px;
    text-align: center;
    line-height: 46px;
    font-size: 18px;
}

/* 激活的显示状态 */
.active {
    background-color: #003f87;
    color: white;
}

/* 悬浮时的展示 */
nav li:hover a {
    background-color: #003f87;
    color: white;
}

/* 二级菜单垂直排列并隐藏 */
nav .sub-menu {
    display: none;
    flex-direction: column;
    background-color: #003f87;
    position: absolute;
    z-index: 999;
}

/* 一级菜单悬浮时显示对应的二级菜单*/
nav>ul>li:hover .sub-menu {
    display: block;
}

/* 二级菜单a元素的设置 */
nav .sub-menu li a {
    height: 40px;
    font-size: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: white;
}


/* 主体内容区 */
main .main-continer {
    margin-top: 12px;
    display: flex;
    justify-content: space-between;
}

/* 主体内容区左边导航栏 */
.is_left h3 {
    width: 205px;
    height: 42px;
    line-height: 42px;
    background-color: #024fa8;
    padding-left: 20px;
    color: #eee;
    font-size: 20px;
}

.is_left li a {
    display: inline-block;
    width: 203px;
    height: 40px;
    line-height: 42px;
    padding-left: 20px;
    font-size: 16px;
    border: 1px solid #dfe4ea;
}

.is_left li a:hover {
    background-color: #d0ebff;
    color: #0984e3;
}

.on {
    color: #228be6;
    font-weight: bolder;
}

/* 主体内容区右边部分 */
.is_right {
    margin-left: 34px;
    flex: 1;
}

.is_right .list a:hover {
    color: #418fd8;
}

/* 主体内容区右边头部部分 */
.is_right .top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
    margin-top: 12px;
    border-bottom: 2px solid #dbdbdb;
    margin-bottom: 24px;
}

/* 主体内容区右边头部的标题部分 */
.is_right .top .title {
    font-size: 20px;
    color: #003f88;
    padding-bottom: 8px;
    border-bottom: 3px solid #003f88;
}

/* 主体内容区右边头部的面包屑部分 */
.is_right .top .crumb {
    font-size: 0px;
}

.is_right .top .crumb .current-position {
    font-size: 16px;
    display: inline-block;
}

.is_right .top .crumb span {
    font-size: 16px;
}

.is_right .top .crumb span a:hover {
    color: #418fd8;
}

.is_right .top .crumb span:not(:last-of-type)::after {
    content: "|";
    margin: 0 6px;
}

/* 主体内容区的列表 */
main .list div {
    display: flex;
    justify-content: space-between;
    align-content: center;
    margin: 20px 0;
}

main .list div span {
    color: #9C9C9C;
    letter-spacing: 1px;
}





























/* 页脚部门 */
footer {
    height: 165px;
    background-color: #003f87;
    display: flex;
    align-items: center;
    margin-top: 154px;
}

footer .info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

footer .info .left {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

footer .remark {
    margin-left: 20px;
    font-size: 14px;
    color: aliceblue;
}

footer .picture {
    display: flex;
    padding-right: 20px;
    border-right: 1px solid white;
}

footer .picture div {
    height: 80px;
    width: 80px;
}

footer .picture div:nth-child(1) {
    background-image: url(../../jsjxy.jxnu.edu.cn-v1/images/shiye.png);
    background-size: contain;
}

footer .picture div:nth-child(2) {
    background-image: url(../../jsjxy.jxnu.edu.cn-v1/images/jxnu.png);
    background-size: contain;
}

footer .picture div:nth-child(3) {
    background-image: url(../../jsjxy.jxnu.edu.cn-v1/images/xueyuan.png);
    background-size: contain;
}

footer .right {
    margin-right: 36px;
}

footer .code {
    height: 80px;
    width: 80px;
    background-image: url(../../jsjxy.jxnu.edu.cn-v1/images/weixin.jpg);
    background-size: contain;
}

footer .weixin {
    width: 80px;
    height: 28px;
    color: white;
    text-align: center;
    font-size: 12px;
    line-height: 28px;
}






